GMO's are organisms that have had their DNA altered or modified through genetic engineering.

Pros- It can make organisms last longer, taste better, more nutritious and resistant to diseases.

Cons- The genetic alterations could cause harm to the organism and/or it could lead to the original organism becoming extinct.

At least 90% of soy, cotton, canola, corn and sugar beets being sold in the US have been genetically engineered. Crops that have be altered can have the ability to grow bigger, taste better and have better defense against bugs and weather conditions.